// 支持多应用的代理沙箱-极简版
class ProxySandBox {
    proxyWindow;
    isRunning = false;
    active() {
        this.isRunning = true;
    }
    inactive() {
        this.isRunning = false;
    }
    constructor() {
        const fakeWindow = Object.create(null);
        this.proxyWindow = new Proxy(fakeWindow, {
            set: (target, prop, value, receiver) => {
                if (this.isRunning) {
                    target[prop] = value;
                }
            },
            get: (target, prop, receiver) => {
                return prop in target ? target[prop] : window[prop];
            }
        });
    }
}
// 验证：
let proxySandBox1 = new ProxySandBox();
let proxySandBox2 = new ProxySandBox();
proxySandBox1.active();
proxySandBox2.active();
proxySandBox1.proxyWindow.city = 'Beijing';
proxySandBox2.proxyWindow.city = 'Shanghai';
console.log('active:proxySandBox1:window.city:', proxySandBox1.proxyWindow.city);
console.log('active:proxySandBox2:window.city:', proxySandBox2.proxyWindow.city);
console.log('window:window.city:', window.city);
proxySandBox1.inactive();
proxySandBox2.inactive();
console.log('inactive:proxySandBox1:window.city:', proxySandBox1.proxyWindow.city);
console.log('inactive:proxySandBox2:window.city:', proxySandBox2.proxyWindow.city);
console.log('window:window.city:', window.city);
// 输出：
// active:proxySandBox1:window.city: Beijing
// active:proxySandBox2:window.city: Shanghai
// window:window.city: undefined
// inactive:proxySandBox1:window.city: Beijing
// inactive:proxySandBox2:window.city: Shanghai
// window:window.city: undefined